Kaya Saman

Looking at things a little deeper, the lcd4linux project (which seems to be abandoned now?) has a Newhaven driver for both RS232 and I2C: https://lcd4linux.bulix.org/wiki/Newhaven Connecting the display to my RS232 level shifter and then the UART ports on my pine64-LTS I do see characters appearing. Of course these are probably whatever the display can interpret from the TTY console output, as these are just a bunch of non-sensical random characters being displayed. From the documentation it looks...

Hi, I am wondering if the Newhaven range of displays are supported? I've got 3 of these displays: https://www.newhavendisplay.com/nhd0220d3zflgbwv3-p-5742.html which support I2C, SPI and RS232. They are connected to Pine64-LTS boards through a TTL 3V -> RS232 level shifter, in RS232 mode. The tech specs for the display are here: http://www.newhavendisplay.com/specs/NHD-0220D3Z-FL-GBW-V3.pdf The displays themselves use a PIC16F690 controller: http://www.newhavendisplay.com/app_notes/PIC16F690.pdf...